Methodology to evaluate fatigue damage under multiaxial random loading
I. Portugal, M. Olave, A. Zurutuza, A. López, M. Muñiz-Calvente, A. Fernández-Canteli
Engineering Fracture Mechanics
Manufacturers must assure the reliability of their products, what implies guaranteeing optimal working conditions during their service life. In this work, a methodology is proposed to estimate the damage experienced by a component under non-proportional loading to be made aiming at predicting when the component will fail and where the failure location will happen. In the present case, a novel cyclic counting model is introduced based on a hybrid variant of the rainflow algorithm applied to the results of the Papadopoulos critical plane approach using the Basquin fatigue model. In this way, the damage model is achieved.